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Use display for msgs on heltec_v3 #10

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58 changes: 56 additions & 2 deletions examples/simple_secure_chat/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,21 @@
#include <helpers/HeltecV3Board.h>
#include <helpers/CustomSX1262Wrapper.h>
static HeltecV3Board board;

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SDA_OLED 17
#define SCL_OLED 18
#define Vext 36

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

#define OLED_RESET 21 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
#elif defined(ARDUINO_XIAO_ESP32C3)
#include <helpers/XiaoC3Board.h>
#include <helpers/CustomSX1262Wrapper.h>
Expand Down Expand Up @@ -251,6 +266,14 @@ class MyMesh : public BaseChatMesh, ContactVisitor {
Serial.printf("(%s) MSG -> from %s\n", path_len == 0xFF ? "DIRECT" : "FLOOD", from.name);
Serial.printf(" %s\n", text);

#if defined(HELTEC_LORA_V3)
display.clearDisplay();
display.setCursor(0,0);
display.printf("(%s) -> %s\n", path_len == 0xFF ? "DIRECT" : "FLOOD", from.name);
display.printf("%s\n", text);
display.display();
#endif

if (strcmp(text, "clock sync") == 0) { // special text command
setClock(sender_timestamp + 1);
}
Expand All @@ -263,13 +286,21 @@ class MyMesh : public BaseChatMesh, ContactVisitor {
Serial.printf("PUBLIC CHANNEL MSG -> (Flood) hops %d\n", in_path_len);
}
Serial.printf(" %s\n", text);

#if defined(HELTEC_LORA_V3)
display.clearDisplay();
display.setCursor(0,0);
display.printf("(%s) -> Channel\n", in_path_len == 0xFF ? "DIRECT" : "FLOOD");
display.printf("%s\n", text);
display.display();
#endif
}

uint32_t calcFloodTimeoutMillisFor(uint32_t pkt_airtime_millis) const override {
return SEND_TIMEOUT_BASE_MILLIS + (FLOOD_SEND_TIMEOUT_FACTOR * pkt_airtime_millis);
}
uint32_t calcDirectTimeoutMillisFor(uint32_t pkt_airtime_millis, uint8_t path_len) const override {
return SEND_TIMEOUT_BASE_MILLIS +
return SEND_TIMEOUT_BASE_MILLIS +
( (pkt_airtime_millis*DIRECT_SEND_PERHOP_FACTOR + DIRECT_SEND_PERHOP_EXTRA_MILLIS) * (path_len + 1));
}

Expand Down Expand Up @@ -509,7 +540,7 @@ class MyMesh : public BaseChatMesh, ContactVisitor {
int len = strlen(command);
while (Serial.available() && len < sizeof(command)-1) {
char c = Serial.read();
if (c != '\n') {
if (c != '\n') {
command[len++] = c;
command[len] = 0;
}
Expand Down Expand Up @@ -548,6 +579,29 @@ void setup() {
Serial.begin(115200);

board.begin();

#if defined(HELTEC_LORA_V3)
Wire.begin(SDA_OLED, SCL_OLED);

pinMode(Vext,OUTPUT);
digitalWrite(Vext, LOW);
delay(100);

// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}

display.clearDisplay();

display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0, 0); // Start at top-left corner
display.cp437(true); // Use full 256 char 'Code Page 437' font
display.display();
#endif

#ifdef SX126X_DIO3_TCXO_VOLTAGE
float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
#else
Expand Down
1 change: 1 addition & 0 deletions platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,7 @@ lib_deps =
${Heltec_lora32_v3.lib_deps}
adafruit/RTClib @ ^2.1.3
densaugeo/base64 @ ~1.4.0
adafruit/Adafruit SSD1306@^2.5.13

[env:Heltec_v3_companion_radio_usb]
extends = Heltec_lora32_v3
Expand Down